2 * Explorer desktop support
4 * Copyright 2006 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
29 #include "wine/gdi_driver.h"
30 #include "wine/unicode.h"
31 #include "wine/debug.h"
32 #include "explorer_private.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(explorer
);
36 #define DESKTOP_CLASS_ATOM ((LPCWSTR)MAKEINTATOM(32769))
37 #define DESKTOP_ALL_ACCESS 0x01ff
39 static HMODULE graphics_driver
;
40 static BOOL using_root
;
42 /* screen saver handler */
43 static BOOL
start_screensaver( void )
47 const char *argv
[3] = { "xdg-screensaver", "activate", NULL
};
48 int pid
= _spawnvp( _P_DETACH
, argv
[0], argv
);
51 WINE_TRACE( "started process %d\n", pid
);
58 /* window procedure for the desktop window */
59 static LRESULT WINAPI
desktop_wnd_proc( HWND hwnd
, UINT message
, WPARAM wp
, LPARAM lp
)
61 WINE_TRACE( "got msg %04x wp %lx lp %lx\n", message
, wp
, lp
);
72 return start_screensaver();
81 return (LRESULT
)SetCursor( LoadCursorA( 0, (LPSTR
)IDC_ARROW
) );
87 if (!using_root
) PaintDesktop( (HDC
)wp
);
90 case WM_SETTINGCHANGE
:
91 if (wp
== SPI_SETDESKWALLPAPER
)
92 SystemParametersInfoW( SPI_SETDESKWALLPAPER
, 0, NULL
, FALSE
);
98 BeginPaint( hwnd
, &ps
);
99 if (!using_root
&& ps
.fErase
) PaintDesktop( ps
.hdc
);
100 EndPaint( hwnd
, &ps
);
105 return DefWindowProcW( hwnd
, message
, wp
, lp
);
109 /* create the desktop and the associated driver window, and make it the current desktop */
110 static BOOL
create_desktop( const WCHAR
*name
, unsigned int width
, unsigned int height
)
112 static const WCHAR rootW
[] = {'r','o','o','t',0};
115 BOOL (CDECL
*create_desktop_func
)(unsigned int, unsigned int);
117 desktop
= CreateDesktopW( name
, NULL
, NULL
, 0, DESKTOP_ALL_ACCESS
, NULL
);
120 WINE_ERR( "failed to create desktop %s error %d\n", wine_dbgstr_w(name
), GetLastError() );
123 /* magic: desktop "root" means use the root window */
124 if (graphics_driver
&& strcmpiW( name
, rootW
))
126 create_desktop_func
= (void *)GetProcAddress( graphics_driver
, "wine_create_desktop" );
127 if (create_desktop_func
) ret
= create_desktop_func( width
, height
);
129 SetThreadDesktop( desktop
);
133 /* parse the desktop size specification */
134 static BOOL
parse_size( const WCHAR
*size
, unsigned int *width
, unsigned int *height
)
138 *width
= strtoulW( size
, &end
, 10 );
139 if (end
== size
) return FALSE
;
140 if (*end
!= 'x') return FALSE
;
142 *height
= strtoulW( size
, &end
, 10 );
146 /* retrieve the desktop name to use if not specified on the command line */
147 static const WCHAR
*get_default_desktop_name(void)
149 static const WCHAR desktopW
[] = {'D','e','s','k','t','o','p',0};
150 static const WCHAR defaultW
[] = {'D','e','f','a','u','l','t',0};
151 static const WCHAR explorer_keyW
[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
152 'E','x','p','l','o','r','e','r',0};
153 static WCHAR buffer
[MAX_PATH
];
154 DWORD size
= sizeof(buffer
);
155 HDESK desk
= GetThreadDesktop( GetCurrentThreadId() );
159 if (desk
&& GetUserObjectInformationW( desk
, UOI_NAME
, buffer
, sizeof(buffer
)/sizeof(WCHAR
), NULL
))
161 if (strcmpiW( buffer
, defaultW
)) return buffer
;
164 /* @@ Wine registry key: HKCU\Software\Wine\Explorer */
165 if (!RegOpenKeyW( HKEY_CURRENT_USER
, explorer_keyW
, &hkey
))
167 if (!RegQueryValueExW( hkey
, desktopW
, 0, NULL
, (LPBYTE
)buffer
, &size
)) ret
= buffer
;
173 /* retrieve the default desktop size from the registry */
174 static BOOL
get_default_desktop_size( const WCHAR
*name
, unsigned int *width
, unsigned int *height
)
176 static const WCHAR desktop_keyW
[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
177 'E','x','p','l','o','r','e','r','\\',
178 'D','e','s','k','t','o','p','s',0};
181 DWORD size
= sizeof(buffer
);
187 /* @@ Wine registry key: HKCU\Software\Wine\Explorer\Desktops */
188 if (!RegOpenKeyW( HKEY_CURRENT_USER
, desktop_keyW
, &hkey
))
190 if (!RegQueryValueExW( hkey
, name
, 0, NULL
, (LPBYTE
)buffer
, &size
))
193 if (!parse_size( buffer
, width
, height
)) *width
= *height
= 0;
200 static void initialize_display_settings( HWND desktop
)
202 static const WCHAR display_device_guid_propW
[] = {
203 '_','_','w','i','n','e','_','d','i','s','p','l','a','y','_',
204 'd','e','v','i','c','e','_','g','u','i','d',0 };
211 UuidToStringA( &guid
, &guid_str
);
212 WINE_TRACE( "display guid %s\n", guid_str
);
214 guid_atom
= GlobalAddAtomA( (LPCSTR
)guid_str
);
215 SetPropW( desktop
, display_device_guid_propW
, ULongToHandle(guid_atom
) );
217 RpcStringFreeA( &guid_str
);
219 /* Store current display mode in the registry */
220 if (EnumDisplaySettingsExW( NULL
, ENUM_CURRENT_SETTINGS
, &dmW
, 0 ))
222 WINE_TRACE( "Current display mode %ux%u %u bpp %u Hz\n", dmW
.dmPelsWidth
,
223 dmW
.dmPelsHeight
, dmW
.dmBitsPerPel
, dmW
.dmDisplayFrequency
);
224 ChangeDisplaySettingsExW( NULL
, &dmW
, 0,
225 CDS_GLOBAL
| CDS_NORESET
| CDS_UPDATEREGISTRY
,
230 static void set_desktop_window_title( HWND hwnd
, const WCHAR
*name
)
232 static const WCHAR desktop_nameW
[] = {'W','i','n','e',' ','d','e','s','k','t','o','p',0};
233 static const WCHAR desktop_name_separatorW
[] = {' ', '-', ' ', 0};
234 WCHAR
*window_titleW
= NULL
;
235 int window_title_len
;
239 SetWindowTextW( hwnd
, desktop_nameW
);
243 window_title_len
= strlenW(name
) * sizeof(WCHAR
)
244 + sizeof(desktop_name_separatorW
)
245 + sizeof(desktop_nameW
);
246 window_titleW
= HeapAlloc( GetProcessHeap(), 0, window_title_len
);
249 SetWindowTextW( hwnd
, desktop_nameW
);
253 strcpyW( window_titleW
, name
);
254 strcatW( window_titleW
, desktop_name_separatorW
);
255 strcatW( window_titleW
, desktop_nameW
);
257 SetWindowTextW( hwnd
, window_titleW
);
258 HeapFree( GetProcessHeap(), 0, window_titleW
);
261 /* main desktop management function */
262 void manage_desktop( WCHAR
*arg
)
264 static const WCHAR displayW
[] = {'D','I','S','P','L','A','Y',0};
265 static const WCHAR messageW
[] = {'M','e','s','s','a','g','e',0};
269 unsigned int width
, height
;
270 WCHAR
*cmdline
= NULL
;
272 const WCHAR
*name
= NULL
;
274 /* get the rest of the command line (if any) */
275 while (*p
&& !isspace(*p
)) p
++;
279 while (*p
&& isspace(*p
)) p
++;
283 /* parse the desktop option */
284 /* the option is of the form /desktop=name[,widthxheight] */
285 if (*arg
== '=' || *arg
== ',')
289 if ((p
= strchrW( arg
, ',' ))) *p
++ = 0;
290 if (!p
|| !parse_size( p
, &width
, &height
))
291 get_default_desktop_size( name
, &width
, &height
);
293 else if ((name
= get_default_desktop_name()))
295 if (!get_default_desktop_size( name
, &width
, &height
)) width
= height
= 0;
298 hdc
= CreateDCW( displayW
, NULL
, NULL
, NULL
);
299 graphics_driver
= __wine_get_driver_module( hdc
);
301 if (name
&& width
&& height
) using_root
= !create_desktop( name
, width
, height
);
303 /* create the desktop window */
304 hwnd
= CreateWindowExW( 0, DESKTOP_CLASS_ATOM
, NULL
,
305 WS_POPUP
| WS_CLIPSIBLINGS
| WS_CLIPCHILDREN
,
306 GetSystemMetrics(SM_XVIRTUALSCREEN
), GetSystemMetrics(SM_YVIRTUALSCREEN
),
307 GetSystemMetrics(SM_CXVIRTUALSCREEN
), GetSystemMetrics(SM_CYVIRTUALSCREEN
),
310 /* create the HWND_MESSAGE parent */
311 msg_hwnd
= CreateWindowExW( 0, messageW
, NULL
, WS_POPUP
| WS_CLIPSIBLINGS
| WS_CLIPCHILDREN
,
312 0, 0, 100, 100, 0, 0, 0, NULL
);
316 if (hwnd
== GetDesktopWindow())
319 void (WINAPI
*pShellDDEInit
)( BOOL
);
321 SetWindowLongPtrW( hwnd
, GWLP_WNDPROC
, (LONG_PTR
)desktop_wnd_proc
);
322 SendMessageW( hwnd
, WM_SETICON
, ICON_BIG
, (LPARAM
)LoadIconW( 0, MAKEINTRESOURCEW(OIC_WINLOGO
)));
323 if (name
) set_desktop_window_title( hwnd
, name
);
324 ShowWindow( hwnd
, SW_SHOW
);
325 SystemParametersInfoW( SPI_SETDESKWALLPAPER
, 0, NULL
, FALSE
);
327 initialize_display_settings( hwnd
);
329 initialize_systray( graphics_driver
, using_root
);
331 if ((shell32
= LoadLibraryA( "shell32.dll" )) &&
332 (pShellDDEInit
= (void *)GetProcAddress( shell32
, (LPCSTR
)188)))
334 pShellDDEInit( TRUE
);
339 DestroyWindow( hwnd
); /* someone beat us to it */
343 if (GetAncestor( msg_hwnd
, GA_PARENT
)) DestroyWindow( msg_hwnd
); /* someone beat us to it */
345 /* if we have a command line, execute it */
349 PROCESS_INFORMATION pi
;
351 memset( &si
, 0, sizeof(si
) );
353 WINE_TRACE( "starting %s\n", wine_dbgstr_w(cmdline
) );
354 if (CreateProcessW( NULL
, cmdline
, NULL
, NULL
, FALSE
, 0, NULL
, NULL
, &si
, &pi
))
356 CloseHandle( pi
.hThread
);
357 CloseHandle( pi
.hProcess
);
361 /* run the desktop message loop */
364 WINE_TRACE( "desktop message loop starting on hwnd %p\n", hwnd
);
365 while (GetMessageW( &msg
, 0, 0, 0 )) DispatchMessageW( &msg
);
366 WINE_TRACE( "desktop message loop exiting for hwnd %p\n", hwnd
);